Safety Incidents OSHA Severe Injury Reports · 2015–2025
2,004,209Inspections Most recent open 2026-07-13 Last loaded 2026-07-17

RANCHO CUCAMONGA, CA —

OSHA Inspection: OS4 LABOR CORPORATE

Accident-driven inspection · Safety discipline

At a glance

On , OSHA opened an accident-driven safety inspection of OS4 LABOR CORPORATE in 10037 8TH ST, RANCHO CUCAMONGA, CA 91730 (NAICS 561311). OSHA activity number 345577704.

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Where did this inspection happen?

Establishment
OS4 LABOR CORPORATE
Site address
10037 8TH ST
City
RANCHO CUCAMONGA
State
CA
ZIP
91730
Mailing
120 NORTH FAIRWAY LANE, WEST COVINA, CA 91791

What kind of inspection was it?

Inspection type
Accident-driven (A)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B

When did the case open and close?

Opened
Closing conference
Case closed
Last modified
Data loaded

Establishment context

NAICS code
561311
Employees
12
Ownership type
A

Citations

1 citation on file for this inspection.

3203(A)

Other-than-serious Gravity 5 1 instance 1000 exposed
Issued
Abate by
Penalty
Initial $420.00 · Current $335.00 Reduced
Recent events (2)
  • — I (O) $335
  • — Z (O) $420

More inspections in this industry (NAICS 561311)

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Source

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 345577704.